﻿<html lang="en">
<head>
<mate charset="utf-8">
<title>学会学导航示例</title>
<style type="text/css">
  * {
    margin : 0;
    padding: 0;
    }
    .header{
     width : 100%;
     height: 50px;
    background: #FFFFFF;
    box-shdow: 0 2px 7px rgba(31, 39, 48, 0.51);
}
 .logo{
  float: left;
  width: 91px;
  height: 40px;
  padding: 10px 0 0 20px;
}
</style>
</head>
<body>
<div class="header">
  <div class="logo">
     <img alt="logo" src="学会学素材/study_logo.png"/>
 </div>
</div>
</body>
</html>